LaGUI/la_util.h

/*
* LaGUI: A graphical application framework.
* Copyright (C) 2022-2023 Wu Yiming
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#pragma once

#define _CRT_SECURE_NO_WARNINGS
#define _GNU_SOURCE

#include <time.h>

#ifdef LA_USE_GLES
#include <EGL/egl.h>
#include <GL/gl.h>
	#ifdef LA_ANDROID
	#include <android/window.h>             // Required for: AWINDOW_FLAG_FULLSCREEN definition and others
    #include <android_native_app_glue.h>    // Required for: android_app struct and activity management
    #include <jni.h>                        // Required for: JNIEnv and JavaVM [Used in OpenURL()]
	#endif
#else
#include <GL/glew.h>
#include <GL/gl.h>
#endif

#include "ft2build.h"
#include "freetype/freetype.h"
#include "la_icon.h"
#include <stddef.h>
#include <stdint.h>
#include <ctype.h>
#ifdef __linux__
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <wchar.h>
#define SYSWINDOW Window
#ifdef LA_USE_GLES
	#define SYSGLCONTEXT EGLContext
#else
	#define SYSGLCONTEXT GLXContext
#endif
#define SYSTEMDC DC
#define SYSTEMRC RC
#define SYSTEMDISPLAY Display
#define SYSLOCK pthread_spinlock_t
#endif
#ifdef _WIN32
#include <Windows.h>
#include "Shlwapi.h"
#define SYSWINDOW HWND
#define SYSGLCONTEXT HGLRC
#define SYSTEMDC HDC
#define SYSTEMRC HRC
#define SYSTEMDISPLAY int
#define PATH_MAX 4096
#define SYSLOCK CRITICAL_SECTION
#endif

#ifdef LA_WITH_LUAJIT

#define luajit_c
#include "lua.h"
#include "lauxlib.h"
#include "lualib.h"
#include "luajit.h"

void tnsLuaInit(lua_State* L);

void la_luaPrintStatus(lua_State *L);
void la_luaLoadLibs(lua_State *L);
void la_luaDumpStack(lua_State *L);

#ifdef __cplusplus
extern "C"{
#endif

extern const char* LA_LUA_LIB_COMMON;

#ifdef __cplusplus
}
#endif

#endif /* luajit */


#define NEED_STRUCTURE(a) \
typedef struct _##a a;

#define STRUCTURE(a) \
typedef struct _##a a;\
struct _##a

#define lengthof(a) \
(sizeof(a)/sizeof(a[0]))

#ifdef _WIN32
#define LA_PATH_SEP '\\'
#define LA_PATH_SEPSTR "\\"
#define realpath(N,R) _fullpath((R),(N),PATH_MAX)
#else
#define LA_PATH_SEP '/'
#define LA_PATH_SEPSTR "/"
#endif

#define DBL_TRIANGLE_LIM 1e-11
#define DBL_EDGE_LIM 1e-9

#ifndef LAGUI_GIT_BRANCH
#define LAGUI_GIT_BRANCH "Release 1"
#endif

// No need to show hash when not compiled from git repo.
//#ifndef LAGUI_GIT_HASH
//#define LAGUI_GIT_HASH "?"
//#endif

#define LA_HYPER_CREATED_TIME(hi) \
hi->TimeCreated.Year,hi->TimeCreated.Month,hi->TimeCreated.Day,hi->TimeCreated.Hour,hi->TimeCreated.Minute,hi->TimeCreated.Second


typedef double real;
typedef unsigned long long u64bit;
typedef unsigned int       u32bit;
typedef unsigned short     u16bit;
typedef unsigned short     ushort;
typedef unsigned char      u8bit;

typedef struct _laListSingle laListSingle;
struct _laListSingle {
	void* pNext;
};

typedef struct _laListHandle laListHandle;
struct _laListHandle {
	void* pFirst;
	void* pLast;
};

typedef struct _laListWithPivot laListWithPivot;
struct _laListWithPivot {
	void* pFirst;
	void* pLast;
	void* Pivot;
};

typedef struct _laListItem laListItem;
struct _laListItem {
	void* pPrev;
	void* pNext;
};

typedef struct _laListItem2 laListItem2;
struct _laListItem2 {
	void* O1;
	void* O2;
	void* pPrev;
	void* pNext;
};

typedef struct _laListItem3 laListItem3;
struct _laListItem3 {
	void* O1;
	void* O2;
	void* O3;
	void* O4;
	void* pPrev;
	void* pNext;
};


NEED_STRUCTURE(laSafeString);
STRUCTURE(laAuthorInfo) {
	laListItem    Item;
	laSafeString* Name;
	laSafeString* CopyrightString;
};
STRUCTURE(laTimeInfo) {
	u16bit Year;//Also Used As Timer [ms] counter
	u8bit  Month;
	u8bit  Day;
	u8bit  Hour;
	u8bit  Minute;
	u8bit  Second;
};

NEED_STRUCTURE(laPropContainer);

typedef struct _laUID laUID;
struct _laUID {
	char String[32];//a simplified uuid, example: 0E3F9BA4802FDDC2-20160601123546 [\0]
};

typedef struct _laListItemPointer laListItemPointer;
struct _laListItemPointer {
	void* pPrev;
	void* pNext;
	void* p;
};

typedef struct _laItemUserLinker laItemUserLinker;
typedef void(*laUserRemoveFunc)(void* This, laItemUserLinker* iul);
NEED_STRUCTURE(laProp);
struct _laItemUserLinker {
	laListItemPointer Pointer;
	laUserRemoveFunc  Remove;
	laProp*           Which;
	void*             Additional;
	unsigned int      FrameDistinguish;
	int               ForceRecalc;
};
typedef struct _laItemUserLinkerLocal laItemUserLinkerLocal;
struct _laItemUserLinkerLocal {
	laItemUserLinker Link;
	void*            Instance;
};


typedef struct _laElementListItem laElementListItem;
struct _laElementListItem {
	laListItem Item;
	void*     Ext;
};

typedef struct _laListNonRecursiveRoot laListNonRecursiveRoot;
struct _laListNonRecursiveRoot {
	laListHandle NSItems;
};

typedef int(*laCompareFunc)(void*, void*);
typedef void(*laListDoFunc)(void*);
typedef void(*laListNonRecursiveDoFunc)(laListNonRecursiveRoot*, void*, void*);//item,custom
typedef void(*laListNonRecursiveCopyFunc)(laListNonRecursiveRoot*, void*, void*, void*);//old,new,custom
typedef void(*laListDoFuncArgp)(void*, void*);
typedef void(*laCopyListFunc)(void*, void*);
typedef void(*laListCustomDataRemover)(void*);
//typedef void(*ListMatcherFunc)(void*,void*);//gotten value,enumed curent lst item.

typedef struct _laListNonRecursiveItem laListNonRecursiveItem;
struct _laListNonRecursiveItem {
	laListItem               Item;
	laListHandle             handle;
	laListHandle            *ToHandle;//This Is Pointer!
	laListNonRecursiveDoFunc func;
	laListNonRecursiveCopyFunc CopyFunc;
	laListCustomDataRemover    remover;
	void*                  CustomData;
	int                    bFreeList;
	int                    SizeEachNode;
};


typedef struct _laHash256 laHash256;
struct _laHash256 {
	laListHandle Entries[256];
};

typedef struct _laHash65536 laHash65536;
struct _laHash65536 {
	laListHandle Entries[65536];
};

typedef struct _laSafeString laSafeString;
struct _laSafeString {
	laListItem Item;
	char *     Ptr;
};

typedef struct _laSafeStringCollection laSafeStringCollection;
struct _laSafeStringCollection {
	laListHandle SafeStrings;
};

typedef struct _laStringSplitor laStringSplitor;
struct _laStringSplitor {
	int         NumberParts;
	laListHandle parts;
};

typedef struct _laStringPart laStringPart;
struct _laStringPart {
	laListItem  Item;
	char *      Content;
	int         IntValue;
	real        FloatValue;
	char        Type;
};

STRUCTURE(laStringLine) {
	laListItem Item;
	uint32_t   Buf[1024];//unicode
};

STRUCTURE(laStringEdit) {
	laListHandle Lines;
	int CursorLine, CursorBefore, CursorPreferBefore;
	int BeginLine, BeginBefore;
	int EndLine,   EndBefore;
	int _BeginLine, _BeginBefore; // selection order
	int _EndLine,   _EndBefore;
	int TotalLines;
	int ViewStartLine, ViewStartCol;
	int ViewHeight, ViewWidth;
	int MouseSelecting;
};

#define LA_SWAP(T,x,y) \
	{ T SWAP = x; x = y; y = SWAP; }

#define LA_MEMORY_POOL_1MB   1048576
#define LA_MEMORY_POOL_128MB 134217728
#define LA_MEMORY_POOL_256MB 268435456
#define LA_MEMORY_POOL_512MB 536870912

STRUCTURE(laMemoryPool) {
	laListItem   Item;
	int          NodeSize;
	int          NextCount;
	int          UsableCount;
	int          Hyperlevel;
	laListHandle Pools;
};

STRUCTURE(laMemoryPoolPart) {
	laListItem   Item;
	laListHandle FreeMemoryNodes;
	int UsedCount;
	laMemoryPool* PoolRoot;
	//<------Pool mem starts here
};

NEED_STRUCTURE(laDBInst);

STRUCTURE(laMemNode0){
	laListItem        Item;
	laMemoryPoolPart* InPool;//<---- Keep at the last
	//<------User mem starts here
};

STRUCTURE(laMemNode) {
	laListItem        Item;
	laListHandle      Users;  //<---- Keep at the second
	void*             ReadInstance;
	laMemoryPoolPart* InPool; //<---- Keep at the last
	//<------User mem starts here
};

NEED_STRUCTURE(laManagedUDF);
STRUCTURE(laMemNodeHyper) {
	laListItem        Item;
	laListHandle      Users;  //<---- Keep at the second
	laUID             NUID;
	laTimeInfo        TimeCreated;
	laManagedUDF*     FromFile;
	int               Modified;
	int               UNUSEDUndoDirty;
	laMemoryPoolPart* InPool; //<---- Keep at the last
	//<------User mem starts here
};

STRUCTURE(laStaticMemoryPoolNode) {
	laListItem Item;
	int       UsedByte;
	//<------User mem starts here
};

STRUCTURE(laStaticMemoryPool) {
	int         EachSize;
	laListHandle Pools;
	//SYSLOCK csMem;
};



STRUCTURE(laAVLNodeReal64) {
	laAVLNodeReal64* Parent;
	u64bit          Index;
	real            Value;
	//real            SmallestValue;
	//real            GreatestValue;
	laAVLNodeReal64* Smaller;
	laAVLNodeReal64* Greater;
	char            Height;
	void*           Pointer;
};	

STRUCTURE(laAVLTreeReal64) {
	laAVLNodeReal64*   Root;
	u64bit            ItemCount;
	laMemoryPool       MemoryPool;
};

STRUCTURE(laTimeRecorder) {
#ifdef __linux__
	struct timespec ts;
#endif
#ifdef _WIN32
	LARGE_INTEGER tm;
#endif
};

STRUCTURE(laTranslationNode) {
	laListItem    Item;
	laSafeString* LanguageName;
	laHash256     Matches;
};

STRUCTURE(laTranslation) {
	int                EnableTranslation;
	laListHandle       Languages;
	laTranslationNode* CurrentLanguage;
	laHash256          MisMatches;
};

STRUCTURE(laTranslationMatch) {
	laListItem Item;
	char * Target;
	char * Replacement;
};

NEED_STRUCTURE(laRackPage);

STRUCTURE(laNodeVisitInfo){
    laListHandle* l;
    laListHandle* br;
    uint64_t Branch;
    int NextBranch;
    laRackPage* Page;
};

NEED_STRUCTURE(laBaseNode);
typedef void (*laBaseNodeInitF)(laBaseNode*, int NoCreate);
typedef void (*laBaseNodeDestroyF)(laBaseNode*);
typedef int (*laBaseNodeVisitF)(laBaseNode*, laNodeVisitInfo*);
typedef int (*laBaseNodeEvalF)(laBaseNode*);
typedef void (*laBaseNodeCopyF)(laBaseNode* _new, laBaseNode* _old, int DoRematch);

STRUCTURE(laBaseNodeType){
    laBaseNodeInitF    Init;
    laBaseNodeDestroyF Destroy;
    laBaseNodeVisitF   Visit;
    laBaseNodeEvalF    Eval;
	laBaseNodeCopyF    Copy;
    laPropContainer*   pc;
	char* TypeName;
	char* Name;
	int Icon;
    int NodeSize;
};
NEED_STRUCTURE(laNodeRack);
STRUCTURE(laBaseNode){
    laListItem Item;
    laSafeString* Name;
    laBaseNodeType* Type;
    laNodeRack* InRack;
    int Gap; int InitDone;
	uint64_t EvalMagic;
	uint64_t Branch;
	uint64_t BranchTemp;
	laBaseNode* Duplicated;
};


#define CreateNew(Type) \
    calloc(sizeof(Type),1)

#define CreateNew_Size(size) \
    calloc(size,1)

#define CreateNewBuffer(Type,Num) \
    calloc(sizeof(Type),Num);

#define FreeMem(ptr) \
    nutFreeMem((&ptr))

#define elif \
        else if

#define LA_UNAVAILABLE_NAME "- Unknown -"

uint32_t laToUnicode(const unsigned char* ch, int* advance);
int laToUTF8(const uint32_t ch, unsigned char* out, unsigned char** next);
int strToUnicode(uint32_t* target, unsigned char* const src);
int strToUTF8(unsigned char* target, uint32_t* const src);
int strlenU(uint32_t* const str);
int strcpyU(uint32_t* target, uint32_t* const source );
int strcatU(uint32_t* target, uint32_t* const source );

struct tm* laGetFullTime();

void laRecordTime(laTimeRecorder* tr);
real laTimeElapsedSecondsf(laTimeRecorder* End, laTimeRecorder* Begin);
int laTimeElapsedMilliseconds(laTimeRecorder* End, laTimeRecorder* Begin);

void laSetAuthorInfo(char * Name, char * CopyrightString);

void memCreateNUID(char* buf,laMemNodeHyper* Hyper);

NEED_STRUCTURE(laPropPack);

int nutHyperUserCount(void* instance, laProp* p_optional, int *p_count);
void memHyperInfo(laPropPack* pp, char* buf);
void memMakeHyperData(laMemNodeHyper* hi);
void nutFreeMem(void** ptr);
int nutFloatCompare(real l, real r);

int nutSameAddress(void* l, void* r);

void* arrElement(void* head, int i, int size);
int arrEnsureLength(void** head, int next, int* max, size_t ElementSize);
int arrInitLength(void** head, int max, int* pmax, size_t ElementSize);
void arrFree(void** head, int* max);

void lstPushSingle(void** Head, laListSingle* Item);
void* lstPopSingle(void** Head, laListSingle* Item);

void lstClearPrevNext(laListItem* li);
int lstCountElements(laListHandle* Handle);
void lstAppendItem(laListHandle* Handle, void* Item);
void lstPushItem(laListHandle* Handle, void* Item);
void* lstPopItem(laListHandle* Handle) ;

void  lstAppendItem2(laListHandle* Handle, void* Item);
void* lstPopItem2(laListHandle* Handle);
void  lstPushItem2(laListHandle* Handle, void* Item);
void  lstAppendItem3(laListHandle* Handle, void* Item);
void* lstPopItem3(laListHandle* Handle);
void  lstPushItem3(laListHandle* Handle, void* Item);

int lstRemoveItem(laListHandle* Handle, laListItem* li) ;
int lstRemoveItem2(laListHandle* Handle, laListItem2* li);

int lstRemoveSegment(laListHandle* Handle, laListItem* Begin, laListItem* End);
void lstInsertItemBefore(laListHandle* Handle, laListItem* toIns, laListItem* pivot);
void lstInsertItemAfter(laListHandle* Handle, laListItem* toIns, laListItem* pivot);
void lstInsertSegmentBefore(laListHandle* Handle, laListItem* Begin, laListItem* End, laListItem* pivot);
void lstInsertSegmentAfter(laListHandle* Handle, laListItem* Begin, laListItem* End, laListItem* pivot);
int   lstHaveItemInList(laListHandle* Handle);
/**/ void* lstGetTop(laListHandle* Handle);

void lstPushSimpleItem(void** first, laItemUserLinker* iul);
void* lstPushItemUser(void** first, void* p);
void* lstPushItemUsing(void** first, void* p);

void* lstAppendPointerOnly(laListHandle* h, void* p);
void* lstAppendPointerSizedOnly(laListHandle* h, void* p, int size);
void* lstPushPointerOnly(laListHandle* h, void* p);
void* lstPushPointerSizedOnly(laListHandle* h, void* p, int size);

void lstReverse(laListHandle* h);

int lstHasPointer(laListHandle* h, void *p);
void* lstAppendPointer(laListHandle* h, void* p);
void* lstAppendPointerSized(laListHandle* h, void* p, int size);
void* lstPushPointer(laListHandle* h, void* p);
void* lstPushPointerSized(laListHandle* h, void* p, int size);

void* lstAppendPointerStatic(laListHandle* h, laStaticMemoryPool* smp, void* p);
void* lstAppendPointerStaticSized(laListHandle* h, laStaticMemoryPool* smp, void* p, int size);
void* lstPushPointerStatic(laListHandle* h, laStaticMemoryPool* smp, void* p);
void* lstPushPointerStaticSized(laListHandle* h, laStaticMemoryPool* smp, void* p, int size);

void* lstPopPointerOnly(laListHandle* h);
void lstRemovePointerItemOnly(laListHandle* h, laListItemPointer* lip);
void lstRemovePointerOnly(laListHandle* h, void* p);
void lstClearPointerOnly(laListHandle* h);
void lstGeneratePointerListOnly(laListHandle* from1, laListHandle* from2, laListHandle* to);

void* lstPopPointer(laListHandle* h);
void lstRemovePointerItem(laListHandle* h, laListItemPointer* lip);
void lstRemovePointer(laListHandle* h, void* p);
void lstRemovePointerLeave(laListHandle *h, void *p);
void lstClearPointer(laListHandle* h);
void lstGeneratePointerList(laListHandle* from1, laListHandle* from2, laListHandle* to);

void lstCopyHandle(laListHandle* target, laListHandle* src);

void* lstAppendPointerStaticPool(laStaticMemoryPool* mph, laListHandle* h, void* p);
void* lstPopPointerLeave(laListHandle* h);
void lstRemovePointerItemNoFree(laListHandle* h, laListItemPointer* lip);

void lstMoveUp(laListHandle* h, laListItem* li);
void lstMoveDown(laListHandle* h, laListItem* li);

void  lstForAllItemsDo(laListDoFunc func, laListHandle* hList);
void lstForAllItemsDoLNRR(laListNonRecursiveDoFunc func, laListHandle* hList);
void lstForAllItemsDo_DirectFree(laListDoFunc func, laListHandle* hList);
void lstForAllItemsDo_arg_ptr(laListDoFuncArgp func, laListHandle* hList, void* arg);
void lstForAllItemsDo_NonRecursive_Root(laListHandle* FirstHandle, laListNonRecursiveDoFunc func, int bFreeItem, void* custom_data, laListCustomDataRemover remover);
void lstCopy_NonRecursive_Root(laListHandle* FromHandle, laListHandle* ToHandle, int SizeEachNode, laListNonRecursiveCopyFunc func, void* custom_data, laListCustomDataRemover remover);
void lstAddNonRecursiveListHandle(laListNonRecursiveRoot* root, laListHandle* newHandle, laListNonRecursiveDoFunc nrFunc, int bFreeList, void* custom_data, laListCustomDataRemover remover);
void lstAddNonRecursiveListCopier(laListNonRecursiveRoot* root, laListHandle* oldHandle, laListHandle* newHandle, int sizeEach, laListNonRecursiveCopyFunc nrCpyFunc, void* custom_data, laListCustomDataRemover remover);
void* lstFindItem(void* CmpData, laCompareFunc func, laListHandle* hList);
void lstCombineLists(laListHandle* dest, laListHandle* src);
void lstDestroyList(laListHandle* hlst);
void* lstReMatch(laListHandle* SearchHandle, laListHandle* CurrentHandle, void* ItemToFind);
typedef int(*MatcherFunc)(void*, void*);
void* lstReMatchEx(laListHandle* SearchHandle, laListHandle* CurrentHandle, void* ItemToFind, MatcherFunc func);

void lstAddElement(laListHandle* hlst, void* ext);
void lstDestroyElementList(laListHandle* hlst);

void hsh256InsertItemCSTR(laHash256* hash, laListItem* li, char * buckle);
void hsh256InsertItem(laHash256* hash, laListItem* li, char buckle);
void hsh65536InsertItem(laHash65536* hash, laListItem* li, long buckle);

void hsh65536Init(laHash65536** h);
void hshFree(laHash65536** h);
laListHandle* hsh65536DoHashLongPtr(laHash65536* hash, unsigned long long buckle);
laListHandle* hsh65536DoHashNUID(laHash65536* hash, char * NUID);

laListItem* hsh256FindItemSTR(laHash256* hash, laCompareFunc func, char * buckle);
unsigned char hsh256DoHashSTR(char * buckle);

void memResetByteCount();
int memGetByteCount();
void* memGetHead(void* UserMem, int* HyperLevel);
laListHandle* memGetUserList(void* UserMem);
laMemoryPool *memInitPool(int NodeSize, int HyperLevel);
void memInitPoolSmall(laMemoryPool* mph, int NodeSize);
laMemoryPoolPart* memNewPoolPart(laMemoryPool* mph);
void* memAcquireH(laMemoryPool* Handle);
void* memAcquireSimple(int Size);
void* memAcquireNoAppend(int Size);
void* memAcquireHyperNoAppend(int Size);
void* memAcquire(int Size);
void* memAcquireHyper(int Size);
void memFree(void* Data);
void memDestroyPool(laMemoryPool* Handle);
void memNoLonger();
void memMarkClean(void* HyperUserMem);

void memLeave(void *Data);
void memTake(void* Data);
void memFreeRemainingLeftNodes();

laStaticMemoryPoolNode* memNewStaticPool(laStaticMemoryPool* smp);
void* memStaticAcquire(laStaticMemoryPool*smp, int size);
void* memStaticAcquireThread(laStaticMemoryPool*smp, int size);
void* memStaticDestroy(laStaticMemoryPool*smp);

NEED_STRUCTURE(laSubProp);

void memAssignRef(void* This, void** ptr, void* instance);
void memAssignRefSafe(laSubProp* sp, void* This, void** ptr, void* instance);

char * strSub(char *input, char *substring, char *replace);

int strGetStringTerminateBy(char * content, char terminator, char * Out);
int strHeadOfStringMatch(char * Str, char * SubStr);
int strSkipSegmet(char ** pivot, char * content);
char * strGetLastSegment(char * Content, char Seperator);
void strDiscardLastSegmentSeperateBy(char * Content, char Seperator);
void strDiscardSameBeginningSeperatedBy(char * s1, char * s2, char ** Result1, char ** Result2, char Seperator);
int strCountSegmentSeperateBy(char * Content, char Seperator);
void strMakeDifferentName(char * Target);

void strReplaceCharacter(char * Str, char Find, char Replace);
void strToUpper(char * Str);
void strToLower(char * Str);
int tolowerGuarded(int a);

laStringSplitor *strSplitPath(char *path,char terminator);
int strMakeInstructions(laStringSplitor** result,char * content);
laStringPart* strGetArgument(laStringSplitor* ss, char * content);
char * strGetArgumentString(laStringSplitor* ss, char * content);
int strArgumentMatch(laStringSplitor* ss, char * id, char * value);
int strDestroyStringSplitor(laStringSplitor** ss);

int strGetIntSimple(char * content);
real strGetFloatSimple(char * content);

void strConvInt_CString(int src, char * dest, int lenth);
void strConvFloat_CString(real src, char * dest, int lenth);

void strCopyFull(char * dest, char * src);
void strCopySized(char * dest, int LenthLim, char * src);
#define strAppend strcat
void strPrintFloatAfter(char * dest, int LenthLim, int bits, real data);
void strPrintIntAfter(char * dest, int LenthLim, int data);
int strSame(char * src, char *dest);
void strEscapePath(char* OutCanBeSame, char* path);

void strSafeDestroy(laSafeString** ss);
void strSafeSet(laSafeString** ss, char * Content);
void strSafeAppend(laSafeString **ss, char *Content);
void strSafePrint(laSafeString **ss, char *Format, ...);
void strSafePrintV(laSafeString **ss, char *Format, va_list arg);

void strSafeDump();

#define SSTR(str) (((str) && (str)->Ptr)?(str)->Ptr:"")

void strBeginEdit(laStringEdit** se, char * FullStr);
char* strGetEditString(laStringEdit *se, int SelectionOnly);
char* strEndEdit(laStringEdit** se, int FreeString);
void strSetEditViewRange(laStringEdit* se, int Lines, int Cols);
void strEnsureCursorVisible(laStringEdit* se);
void strRemoveLine(laStringEdit* se, laStringLine* sl);
void strRemoveLineI(laStringEdit* se, int LineIndex);
void strSetCursor(laStringEdit* se, int LineIndex, int BeforeIndex);
void strMoveCursor(laStringEdit* se, int Left, int Select);
void strMoveCursorLine(laStringEdit *se, int Up, int Select);
int strHasSelection(laStringEdit* se);
void strCancelSelect(laStringEdit *se);
void strLazySelect(laStringEdit *se);
void strEndSelect(laStringEdit *se);
void strSelectLineAll(laStringEdit* se);
void strDeselectAll(laStringEdit* se);
void strPanFoward(uint32_t * str, int Before, int Offset);
void strSquishBackward(uint32_t * str, int Before, int EndBefore);
void strClearSelection(laStringEdit* se);
laStringLine *strGetCursorLine(laStringEdit *se, int* IndexIfLast);
laStringLine* strGetBeginLine(laStringEdit* se);
void strInsertChar(laStringEdit* se, uint32_t a);
void strBackspace(laStringEdit* se);
void strMoveView(laStringEdit *se, int DownLines, int RightCharacters);

int laCopyFile(char *to, char *from);

void transNewLanguage(const char * LanguageID);
void transSetLanguage(const char * LanguageID);
void transDumpMissMatchRecord(const char * filename);
void transNewEntry(const char * Target, const char * replacement);
char * transLate(char * Target);
void transState(void* UNUSED, int val);
void transInitTranslation_zh_cn();


void laOpenInternetLink(char* url);

#define SEND_PANIC_ERROR(msg) \
	{printf(msg); exit(0);}

#ifdef _WIN32
void usleep(unsigned int usec);
#endif

void laSpinInit(SYSLOCK* lock);
void laSpinDestroy(SYSLOCK * lock);
void laSpinLock(SYSLOCK* lock);
void laSpinUnlock(SYSLOCK* lock);

int terLoadLine(char* buf, int firstline);